Home / 1,785,902.40-2,678,853.60-456,206.40

Finding the Fourth Proportional to 1,785,902.40, 2,678,853.60 and 456,206.40

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Solution

The fourth proportional to 1,785,902.40, 2,678,853.60 and 456,206.40 is: 684,309.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,785,902.40 : 2,678,853.60 = 456,206.40 : x
  2. Step 2: Convert to fraction form
    1,785,902.40/2,678,853.60 = 456,206.40/x
  3. Step 3: Cross multiply
    1,785,902.40x = 2,678,853.60 × 456,206.40
  4. Step 4: Simplify right side
    1,785,902.40x = 1,222,110,156,983.04
  5. Step 5: Solve for x
    x = 1,222,110,156,983.04/1,785,902.40
  6. Step 6: Final answer
    x = 684,309.60

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.